Pressure-regulating device for gas and steam.



A. GAUDET. PRESSURE REGULATING DEVICE FOR GAS AND STEAM.

APPLICATION FILED 00T.5,1908.

Patented Mar. 16. 1909.

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mnrnn sraras raw AUGUSTE GAUDET, OF PARIS, FRANCE.

PRESSURE-REGULATING- DEVICE FOR GAS AND STEAM.

To all whom it may concern:

Be it known that I, AUeUsTE GAUDET, a citizen of the Republic of France, residing at 33 Rue de Flandre, Paris, France, have invented certain new and useful Improvements in Pressure-Regulating Devices for Gas and Steam, of which the following is a specification. 7

This invention relates to an improved pressure-1egulating device which can be em ployed for gas and steam and is so constructed that it has many advantages over pressure-regulating devices hitherto constructed.

The pressure regulating devices having valve flaps of ebonite soon fail to insure a precise and. exact closing of the valve, owing to the rapid wearing away of the ebonite. The metal ball used in this apparatus to replace the ebonite flap valve possessesmany advantages and always insures an exact closing of the valve. Moreover, the closing movement is rendered smoother and less abrupt, as it acts through the medium of a. ball.

In the accompanying drawingin which the invention is illustrated. Figure 1 is a longitudinal section of the pressure-regulating device,Fig. 2 being a transverse section.

The gas or steam under pressure is introduced through the inlet a and comes under the ball I) which it raises. This metal ball is made of steel but in cases where oxygen isemployed it is made of nickel. After raising the ball I), the gaspasses around the metal support 0, which is of cruciform shape in cross section and passing through the open ing d enters the expansion chamber a. Having reached this the gas exercises pressure on the diaphragm f. This diaphragm is made of india-rubber and is fixed between the two parts 9 and h of the casing of the pressure-regulating device, cavities t enabling it to be immovably fixed, this being effected by squeezing the material into the cavities. The diaphragm f being put under tension by the pressure ofthe gas, forces the rod j to follow it in its new position. The lever-arm 7c connected with the rod by means of a pin Z causes the screw m in the piece a to turn, and in descending the screw exercises pressure on the ball 0 which, through the medium of the support a presses the ball I) on to its seat and prevents any subsequent introduction of gas.

Specificationbf Letters Patent. Patented March 16, 1909.

Application filed October 5, 1908. i

Serial No. 456,210.

The gas having expanded and escaped from the chamber 6, the spring p acts on the diaphragm f and returns it to its first position, whereby the screw m is caused to turn in the contrary direction through the medium of the rod and the lever arm" Z. The screw m having been raised again, the ball p can be raised once more and allow a fresh entry of gas. The screw m is firmly connected with the lever arm 7c by means of a pin 7. Moreover the tension of the spring is regui lated by a tightening screw 8.

inlet and outlet openings, a flexible diaphragm in said casing, a ball valve for closing the inlet of said casing, a ball located above said ball valve, supporting means arranged between said balls, a member operatively connected with said diaphragm and acting through the medium of the ball to press the valve on its seat when the pressure on the diaphragm exceeds a predetermined amount and means for returning said diaphragm to normal position when the pressure is relieved. I a

Z. An automatic pressure regulator for gas and steam comprising a casing with inlet and outlet openings, a flexible diaphragm mounted in the casing and provided with an adjustin g screw and spring on one side, a ball valve adapted to admit the fluid under pressure to the casing, a ball located above the ball valve on a support resting on the valve and a screw operatively connected with the diaphragm and acting through the intermediate ball to press the valve on its seat when the pressure on the diaphragm exceeds a predetermined amount substantially as described;

In testimony whereof I have aflixed my signature, in presence of two Witnesses.

AUGUSTE GAUDET. 

